code: def test_profiler():
      with prof:
          in_context_time = default_timer()
          out = get(dsk, "e")
      assert out == 6
      assert prof.start_time < in_context_time < prof.end_time
      prof_data = sorted(prof.results, key=lambda d: d.key)
      keys = [i.key for i in prof_data]
      assert keys == ["c", "d", "e"]
      tasks = [i.task for i in prof_data]
      assert tasks == [
          (add, "a", "b"),
          (mul, "a", "b"),
          (mul, "c", "d"),
      ]
      prof.clear()
      assert prof.results == []
  
imports: from __future__ import annotations
  import contextlib
  import os
  import warnings
  from operator import add, mul
  from timeit import default_timer
  import pytest
  from dask.diagnostics import CacheProfiler, Profiler, ResourceProfiler
  from dask.diagnostics.profile_visualize import BOKEH_VERSION
  from dask.threaded import get
  from dask.utils import apply, tmpfile
  from dask.utils_test import slowadd
label_desc: Use image node_id 1 for calling a global function with example usage: test_profiler() without return types